How secure is WiFi MAC layer in comparison with IPsec for classified environments?

  • Authors:
  • Stanley L. Cebula;Aftab Ahmad;Luay A. Wahsheh;Jonathan M. Graham;Sandra L. DeLoatch;Aurelia T. Williams

  • Affiliations:
  • Norfolk State University (NSU), Norfolk State University, Norfolk VA;Norfolk State University (NSU), Norfolk State University, Norfolk VA;Norfolk State University (NSU), Norfolk State University, Norfolk VA;Norfolk State University (NSU), Norfolk State University, Norfolk VA;Norfolk State University (NSU), Norfolk State University, Norfolk VA;Norfolk State University (NSU), Norfolk State University, Norfolk VA

  • Venue:
  • Proceedings of the 14th Communications and Networking Symposium
  • Year:
  • 2011

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Abstract

The IEEE 802.11--2007, like its earlier versions, provides a robust MAC layer with the help of mandatory CCMP and comprehensive key-generation, derivation, and distribution mechanisms. However, the physical layer continues to be without any protection from signal privacy attacks and anonymity of attacker within the WLAN, and it has no solution in the standard. The MAC layer, too, has not quite achieved the confidence of the networking community at the level of IPsec as of yet. In this paper, we present the results of a study that looks at the IEEE 802.11--2007 MAC security in juxtaposition to IPsec. We thus compare the attacks that can be thwarted by IEEE 802.11--2007 MAC as well as IPsec and the manners in which they can be thwarted by each security layer. The results can be used to propose enhancements to the IEEE 802.11--2007 MAC layer in order for it to gain the same level of confidence as obtained by IPsec. The purpose is not to choose between IPsec and IEEE 802.11--2007 security (as both are required at different layers), rather it is to help understand what could be added to the IEEE 802.11--2007 standard to make it as secure as IPsec.